Mid-Ohio Sports Car Course
Lexington, Ohio · 3.61 km · 2.25 mi · clockwise
Mid-Ohio Sports Car Course in Lexington, Ohio is a 3,614 m (2.25 mi) clockwise circuit with twelve modeled corners. Elevation in the source geometry runs from 397.4 m to 439 m — a 41.6 m (136 ft) spread, with 52.2 m of total climbing per lap. The simulated speed profile splits the lap cleanly in two: the fastest cornering comes in the middle, where Turn 7's 83 m effective radius lets the model carry a 112 km/h (70 mph) minimum, while the opening of the lap — Turns 1 through 5 — is a sustained slow section with minimums between 65 and 86 km/h (40–53 mph). One of the hardest decelerations arrives at Turn 10, the Carousel, where the simulation peaks at 129 km/h (80 mph) before shedding more than 60 km/h. Simulated lap estimates: 99.1 s for a liter bike (130 km/h / 81 mph average), 99.6 s for a Supersport 600, and 101.8 s for a middleweight 650 twin. All figures on this page are physics-simulation estimates.
All figures: physics-simulation estimates · generated 2026-07-08 · methodology & assumptions
Track outline © OpenStreetMap contributors (ODbL)
Mid-Ohio Sports Car Course — quick facts
Motorcycle track guide · simulation estimates · 2026-07-08
- Length: 3,614 m (2.25 mi), run clockwise — 12 modeled corners
- Elevation: 397.4–439 m, a 41.6 m (136 ft) range with 52.2 m of climbing per lap
- Fastest corner (simulated): Turn 7, 112 km/h (70 mph) minimum on an 83 m radius
- Slowest section (simulated): Turns 1–5, minimums of 65–86 km/h (40–53 mph)
- Highest simulated corner-entry speed: 129 km/h (80 mph) into Turn 10
- Simulated lap estimates: 99.1 s (liter bike), 99.6 s (Supersport 600), 101.8 s (650 twin)
- Longest single corner: Turns 1 and 12, each 180 m of arc length
Turn 1 — The Keyhole
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 111 km/h69 mph | 72 km/h45 mph | 116 km/h72 mph | 75 m246 ft | 34 m113 ft | -4.5 m-15 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
The Keyhole opens the lap: a 180 m right-hander on a 34.3 m effective radius that falls 4.5 m from entry to exit. In the simulation, all three bike classes arrive at essentially the same speed — about 111 km/h (69 mph) — because the corner sits early in the lap, but braking points diverge modestly with machine weight and power: the model starts braking 78 m out on the liter bike, 75 m on the Supersport 600, and only 72 m on the 650 twin. Minimum speed is identical across classes at 72 km/h (45 mph), and the exit builds back to roughly 116 km/h (72 mph), or 114 km/h (71 mph) for the twin. The downhill grade slightly reduces braking authority in the model, which is part of why the brake zones here are among the longest on the circuit. Physics-simulation estimates.
Turn 2
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 128 km/h80 mph | 65 km/h40 mph | 126 km/h78 mph | 39 m128 ft | 28 m91 ft | -3.5 m-11 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 3
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 115 km/h72 mph | 72 km/h45 mph | 89 km/h55 mph | 12 m39 ft | 34 m112 ft | +0.9 m+3 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 4
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 86 km/h53 mph | 86 km/h53 mph | 135 km/h84 mph | 27 m89 ft | 74 m242 ft | -4.0 m-13 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 5
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 96 km/h59 mph | 81 km/h50 mph | 114 km/h71 mph | 42 m138 ft | 43 m142 ft | -1.2 m-4 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 6
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 106 km/h66 mph | 87 km/h54 mph | 124 km/h77 mph | 15 m49 ft | 50 m164 ft | +2.0 m+7 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 7
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 115 km/h72 mph | 112 km/h70 mph | 133 km/h82 mph | 30 m98 ft | 83 m272 ft | -2.6 m-9 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 8
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 128 km/h79 mph | 92 km/h57 mph | 133 km/h82 mph | 9 m30 ft | 56 m184 ft | +1.7 m+6 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 9 — Thunder Valley
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 119 km/h74 mph | 94 km/h58 mph | 121 km/h75 mph | 45 m148 ft | 58 m191 ft | +5.5 m+18 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 10 — Carousel
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 129 km/h80 mph | 69 km/h43 mph | 100 km/h62 mph | 33 m108 ft | 32 m103 ft | -1.1 m-4 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 11
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 123 km/h77 mph | 104 km/h65 mph | 124 km/h77 mph | 66 m217 ft | 72 m235 ft | -1.0 m-3 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 11 is an 84 m left on a 72 m radius, far more open than the Carousel it follows, descending 1 m. The simulation enters at 123 km/h (76 mph) with braking starting 66 m before the corner on the Supersport 600, 36 m out on the twin, and not at all on the liter bike, and holds a 104 km/h (65 mph) minimum — comfortably above the lap's slow-speed band before the run home. Exit speed is 124 km/h (77 mph) for the fours, 122 km/h (76 mph) for the twin. In the modeled speed profile this corner sets up the launch into Turn 12, so the exit figure here directly seeds the run onto the front straight. Physics-simulation estimates.
Turn 12
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 128 km/h79 mph | 99 km/h62 mph | 160 km/h100 mph | 93 m305 ft | 65 m213 ft | +2.4 m+8 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 12 closes the lap: a 180 m left on a 65 m effective radius, climbing 2.4 m onto the front straight. The simulation carries 128 km/h (80 mph) to the brake point — among the highest corner-entry speeds on the circuit, 93 m out on the Supersport 600, 117 m on the liter bike, 63 m on the twin — and only drops to a 99 km/h (62 mph) minimum, 34 km/h faster than the lap's slowest point. Exit speed is 160 km/h (99 mph), with the twin at 156 km/h (97 mph). Because the exit feeds the longest acceleration zone of the lap, this is where the per-class power differences translate most directly into the simulated lap-time gaps. Physics-simulation estimates.